Pierce’s Illness (PD) of grapevine (Vitis vinifera) is because of the bacterium Xylella fastidiosa which is vectored by xylem sap-sucking insects, whereas Grapevine Crimson Blotch Virus (GRBV) triggers Pink Blotch Condition which is transmitted in the laboratory by alfalfa leafhopper Spissistilus festinus. The significance of anthocyanin accumulations in distinctive tissues https://lyricsdemon.com/